Mechanics

HONDA ACCORD CLUTCH PROBLEM

2000 Honda Accord • 159,000 miles

Had d4 flashing and seemed to be stuck in 4th gear. Ses light.
has dtcs p0780, p0730. Dtcs will not clear with key on engine off.
ses light out after clearing. Test drove 30 miles with no problem.
suspect a b solinoid issue but not sure. Your input would be greatly appreciated. Thx. Dan
Avatar
Dtautfest
December 19, 2012.



Clearing does nothing for the issue. Stop doing that as it stores data at the time of failure for the tech to see when he scans it.

780

DTC P0780: Mechanical Problem in Hydraulic Control System for Shift Solenoid Valve A and A/T Clutch Pressure Control Solenoid Valves A and B, or Problem in Hydraulic Control System

NOTE: - Record all freeze data before you troubleshoot.
- Keep replacement solenoid valves on hand: - Torque converter clutch solenoid valve/shift solenoid valve A
- A/T clutch pressure control solenoid valves A and B

1. Check whether the OBD II scan tool indicates another code.
Does the OBD II scan tool indicate another code?
YES - Perform the Troubleshooting Flowchart for the indicated Code(s). Recheck for code P0780 after troubleshooting.
NO - Go to step 2.
2. Turn the ignition switch OFF.
3. Replace the torque converter clutch solenoid valve/shift solenoid valve A, and the A/T clutch pressure control solenoid valves A and B.
4. Reset the PCM memory by removing the BACK UP fuse in the passenger's under-dash fuse relay box for more than 10 seconds.
5. Drive the vehicle for several minutes in 1st, 2nd, 3rd, and 4th gears in 1 position.
6. Recheck for code P0780.
Does the OBD II scan tool indicate code P0780?
YES - Replace the transmission assembly.
NO - The problem has been corrected.

NOTE: Honda Motors has extended the warranty on A/Ts and torque converters to 7 years or 100,000 miles for '00-'01 Accords, '99-'01 Odyssesys, and '00-'01 Preludes. For more information, see Service Bulletin 02-062 (January 5, 2007).

730

DTC P0730: Problem in Shift Control System

NOTE: - Record all freeze data before you troubleshoot.
- Keep replacement solenoid valves on hand: - Torque converter clutch solenoid valve/shift solenoid valve A
- Shift solenoid valves B and C
- A/T clutch pressure control solenoid valves A and B

1. Check whether the OBD II scan tool indicates another code.
Does the OBD II scan tool indicate another code?
YES - Perform the Troubleshooting Flowchart for the indicated Code(s). Recheck for code P0730 after troubleshooting.
NO - Go to step 2.

NOTE: Do not continue with the troubleshooting until the causes of any other DTCs have been corrected.

2. Measure the 1st, 2nd, 3rd, and 4th clutch pressure.
Is each clutch pressure within the service limit?
YES - Go to step 3.
NO - Repair the hydraulic system as necessary.
3. Replace the torque converter clutch solenoid valve/shift solenoid valve A.
4. Replace the shift solenoid valve B and shift solenoid valve C.
5. Replace the A/T clutch pressure control solenoid valves A and B.
6. Turn the ignition switch OFF and reset the PCM memory by removing the BACK UP fuse in the passenger's under-dash fuse/relay box for more than 10 seconds.
7. Drive the vehicle at a speed over 12 mph (20 km/h) in 1st, 2nd, 3rd, 4th gear in D4 position for more than 30 seconds.
8. Recheck for code P0730.
Does the OBD II scan tool indicate code P0730?
YES - Replace the transmission.
NO - The system is OK at this time.

ASEMaster6371
Dec 19, 2012.